Liquid-fuel burner.



E. G. KAHN.

UQUID FUEL BURNER.

APPHCATlON FILED MAY 28, 1917.

Pate/med June 11, 1918.

2 SHEETS-SHEET 1.

E. C. KAHN.

LIQUID FUEL BURNER.- APPLICA'HON FILED MAY 23. 191 7.

. W w W Um W Hm M LiE- QJQQ i I f //7/WO/ in salari Parana canton EDW C. KAHN, F MILWAUKEE, WISCONSIN.

LIQUID-FUEL Brianna.

To all whom it may concern;

Be it known that I, EDWARD C. KAHN,

a citizen of the United States, and resito simplify the structure and to increase the eiiiciency of burners of this character by providing amixing and expansion chamber wherein air incorrect proportion is drawn in by the entrance of fuel vapors and thoroughly co-mingled with the vapors by reason of the air and gas being caused to travel in eddying currents prior to their entrance into the burner head; and in which the fuel vapors fully expand in their whirling course through the chamber.

Another object resides in the provision of a burner head juxtaposed and in communication With the mixing and expansion chamber, and concaved in its under side to permit the continuation of the whirling movements given the gases in the mixing cham her, and provided with a series of spaced to radial slots in its outer peripheral edge to allow escapage of the gases for ignition. A further object is to provide a burner head having its jet apertures so arranged with respect to the supply passages thereof as to prevent the possible occurrence of 00mbustion Within the burner head, it being more specifically an object to effect this resuit by so constructing the expansion and mixing chamber as to insure the proper flow of fuel gas through the jet apertures,

With the above and other objects in view which Will -appear the description proceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and'part-icularly defined by the appended claims, i; being understood that any changes in, n ciseembodiment of the herein disclosed, invention may be made as come Within the scope of theclaims.

In the accompanying drawings 1 have Specification of Letters IPatent.

v A pplicationfiled JEay 28, 191?. Serial Ho. 17l,333.

illustrated one complete Patented nine ii, 11 .918,?

example of -j theli physicalembodimentof my invention con structed according to the best model 'hayey so far devised for the practical applicationfso of the principles of my invention, in which :3

Figure lsis a sectional View through any, burner taken on the plane indicated by line; l-1 of Fig, 2, and I Flg. 2 IS a top plan ie ,th BfE gI parts broken away-to more clearly illustratestructural details. v

Referring now more particularly accompanying drawing, 5 designates, thy standing supplypipeot the burns ei-tel supply pipe is in communication super-heating pipe 6 supported 7 burner head by a" bracket 7 and having its ,1; end 8 in threaded engagement and co municating with the intake 9 of th spray nozzle 10. This sprayfnozzle coinprises a needle I valve 11 of c inventional.- v design adapted to engage aspray opening,

12, the shaft of the valve being threaded engagement With the internally, threadedinef shank 13 of the nozzle and adapted to be) manipulated by a handle 14-." H

The spray opening 12 is in line with, he? opening of the mixing or expansion ha Brill dge slotted as at 23 '10, providellstjrieb apertures said burner having its periphf eral edge inclined to correspond 'With. the incline of flange 21 and spaced therefrom a distance equal to the Width of 5a aper tures 23; lugs 24 being provided to; retain this spaced relation between the burner cap and flange 21. 7 The outer periphery of the top Wall 18 is provided with spaced ears or lugs 25; forljf spacing the same from a hood 26 to ffl 'm $10 an annular air inlet passage, which hasits upper portion 27 extending above theburner Y ber which comprises a central channel orintakef a5} er in o so? a; incense cap inwardly and upwardly inclined; suitextending to a point just beyond said cena-ble fastening screwl; 28 being provided tral aperture the compartment between the passing through the hobd and engaging the partitions being of greater depth than the lugs 25 to secure thh-samein position. outer compartments. 7 '5' For initially heating the mixing or ex- 5. In an oil burner, a mixing chamber and ya pansion chamber and spray nozzle, suitable burner head comprising a circular dished Mtroughs or inverted cup members 29 and 30 plate having a central aperture therein, a are provided, the trough :29 beingsecured distributing burner cap seated in the dished to the spray nozzle by means of a stub bolt plate and provided. with a series of radial 1Q 31 and the trough 30 being secured aromid slots forming jet openings, means spacing the. incl supply pipe 5, and as t e ma the peripheral edge of said burner cap from 5i t Same w be r adil underthe inner peripheral Wall of said dished 559061 by thOSfi skilled in the Gift "50 which plate, a circular mixing chamber formed invention oif this character appertains, furon the under side of said plate and in comthe r description is thought unnecessary. munication With said central aperture, and m As Will'bc understoo my m y be; an inlet opening "for the mixing chamber. supported by the up-standin fuel supply 6. In an oil burner, a mixing chamber pip 1 may b ppo ed y a suitable and ournerhead comprisingacircular dished p d t l 32 Carried by t lIOttOm-WEH plate'having a central aperture therein, a so the mixing Chambel: and that 6 Operation, distributing burner cap seated in the dished" as pf the burner is as follows: The cups 29 and plate a. circular mixing and expansion are first-filled With the liquid {1191 93161 chamber formed on the under side of said I then ignited to preheat the spray HO plate and in communication with the centhe m g e p n chamber and n i tral aperture, said mixing. and expansiong" P p a when sfiveml P chamber being eccentric with said plate, and ac have been thoroughly heated, the supply of an i l t 1 6;- th i i h b fuel is then turned on and ignited. va 7 i an il 5 a i ing h b d P 1161 w l p y from t the P W burner head comprising a circular dished Opening 121ml) I P t wlwl'e p we having a central aperture therein, a Same ll be thoroughly co-mingled with distributing burner cap seated inthe dished as drawn in y the fuel" of ill t i g plate, a circular mining and expansion directly from the Q l 15 ro g the chamber formed on the under side of said Opening 17 and the best P of this 19 plate and in communication with the con gas Passing around into chambers (50mtral aperture, said mixing chamber being Partments 20 and and than @Pmlhg eccentric With said plate, and an inlet op entoo 17 WheTe h Same Will h ing'for the mixing chamber said inlet being hr gh e J 23 Where 1% g as a formed by a pair of parallel partitions en- 1 e 7 \tending beyond the periphery of said cham- What is claimed 152- ban a In an 1 f g wl 8. In an oil burnefl a fuel supply having me a i g an Outlet 1 3 2 3: l ll m 3 means for vaporizing the incl, a spray nonps Phamloe? e fi g it 2 2. zle at the termination oi the fuel supply, mllPlcalilllg Compartments 111 m a central channel formed by a pair oi par- Catlon l ollflet p n g, 831 Inlet allel Walls, an expansion chamber communb a5 communicatmg 'Wltlfl one d c p cating with said channel, said parallel walls 110 ments. l extending into the chamber and defining a all 011 m l g chambal pair of outer communicating compartments havmg a Central p 2 p 'I F and said central channel forming a central and a central compartment 1 the m g' compartment, an. outlet in the top Wall o l Chamber defined y a P of Partltlons the expansion chamber and communicating 115 theI'em p mm p g Willi 1311143 atmosphere with the three compartments, and a burner to provlde an ntake opening, the S P head disposed above the outlet, the fuel" tit ons extending 1nt0- sald chamber "to a vapor passing into the central channel and ROlIlll pa d from the Portlon 0f lllw collecting 'suilicient air and expanding in 5 side peripheral Wall of the chamber. said'channel, part of the vapor passing out 120 3. In an 011 burner, a mixmg chamber pr0-' of the channel by Way of said outlet, and the lded f ll c n a y ans r P Wall major part of the vapor passing around the and an intake opening fqrthechamber and parallelivalls into the outer compartments defined by a pair of partltlons 1n the a Where it is further expanded and then passes her extending to a point just beyond said through the outlet to the burner head sub- 1% central aperture'. stantially as described.

4:. In an oil burner, a mixing chamber pro- 9. An oil burner comprising a centrally vided with an aperture in its top Wall and apertured burner head and a mixing chain'- an intake opening for the chamber and deber comprising a series of conimunicatin fined by a pair of partitions in thechainber compartmentseach in communication Wilt; i o

the burner head aperture, the mixing chamber being provided with bafiie walls adapted to causethe gas to travel in eddying currents prior to its entrance into the afore- 'the under side of said plate, a pair of partitions extending from the inner portion of said chamber to a point outward of the peripheral wall thereof, said partitions defining a series of communicating compartments each communicating with said central aperture, the central compartment defined by said partitions providing an inlet opening,

a spray nozzle in line with the open mouth 20 of said central compartment, a super-heating pipe connected with the spray nozzle and having a portion thereof disposed over the distributing burner cap, and a source of supply connected with said super-heating 25 In testimony that I claim the foregoing I have hereunto set myhand at Milwaukee, in the county of Milwaukee and State of WlSCOIlSlIl. v

EDWARD C. KAHN. 

